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Choose Voyant when you want fast, visual, no-install exploration to see what is in a corpus, and choose AntConc when you need precise concordance lines, transparent keyword statistics and full local control over sensitive or large texts. Most projects use both — Voyant to reconnoitre and AntConc to do the citable, rigorous work. The deciding factors are privacy, the need for reproducible statistics, and corpus size, not which one is "better."
Both are free and widely used in digital humanities, but they answer different questions. Voyant is a browser suite of interlinked visualisations; AntConc is a focused desktop tool built around the concordance tradition. Picking between them is really about matching the tool to your stage of work.
What does each tool actually do best?
AntConc, written by Laurence Anthony, centres on a few rigorous views: concordance (KWIC), concordance plot, collocates, clusters and n-grams, word list, and a keyword list computed against a reference corpus. Everything runs locally and is built for careful, citable analysis.
Voyant, by Stéfan Sinclair and Geoffrey Rockwell, is a constellation of linked panels — Cirrus word cloud, Trends, Contexts, Bubblelines — that update together. It is built for seeing a corpus quickly and sharing a live URL.
How do I decide between them?
Run down five factors in order:
| Factor | AntConc | Voyant |
|---|---|---|
| Install | Desktop download | Browser, none |
| Privacy | Fully local | Remote unless self-hosted |
| Keyword stats | Strong (log-likelihood, reference corpus) | Limited |
| Visual overview | Basic | Rich, interactive |
| Large corpora | Predictable | Can time out on public server |
| Sharing | Screenshots/exports | Live URL |
If two or more high-stakes rows point the same way — say privacy and keyword statistics both favour AntConc — your choice is effectively made.
Which should a beginner open first?
Voyant, almost always. The friction is near zero:
text
1. Go to voyant-tools.org
2. Paste text or upload a folder of .txt files
3. Read the Cirrus, Trends and Contexts panels that appearIn minutes you see frequencies, distinctive terms and where they cluster — enough to form questions. AntConc rewards you later, when those questions need exact lines and defensible numbers.
Is it safe to put my texts into Voyant?
This is the factor people overlook. The public voyant-tools.org server processes uploaded text on a remote machine. For published or public-domain material that is fine. For unpublished transcriptions, restricted archival material or anything under embargo, do not upload it. Two safe routes:
- Run Voyant locally with its server release, keeping data on your machine.
- Use AntConc, which never sends text anywhere.
AntConc's offline-by-design model is a genuine advantage for sensitive collections.
How do I get rigorous keyword statistics?
When you need citable keywords, AntConc is the stronger tool. Load your target corpus and a matched reference corpus, then in the keyword settings choose log-likelihood and a threshold:
text
AntConc -> Tool Preferences -> Keyword List
Keyword statistic: Log Likelihood (4-term)
Threshold: p < 0.0001
Reference corpus: load matched contemporaneous textsThe choice of statistic and reference corpus is explicit and reportable — exactly what a methods section needs. Voyant can hint at distinctive terms visually but is not built for this kind of statistical rigour.
Can I, and should I, use both?
Yes — the combination is the best workflow for many projects:
- Voyant for reconnaissance: spot rising terms, surprising collocates, uneven distribution across the corpus.
- AntConc for verification: pull exact concordance lines for the interesting terms and compute citable keyword statistics.
The tools complement each other. Voyant's speed finds the questions; AntConc's precision answers them in a form you can publish.
Key Takeaways
- Voyant wins for fast, visual, no-install exploration and easy sharing.
- AntConc wins for precise concordances, transparent keyword statistics and local control.
- Privacy is decisive: do not upload sensitive text to the public Voyant server.
- For citable keyword analysis with a reference corpus, prefer AntConc.
- Large or multi-million-word corpora run more predictably in AntConc.
- The strongest workflow uses Voyant to reconnoitre and AntConc to verify.
Frequently Asked Questions
What is the core difference between AntConc and Voyant?
AntConc is a free desktop application built around rigorous concordance and keyword analysis on text you control locally; Voyant is a browser-based suite of visual exploration tools. AntConc favours precision and offline control; Voyant favours fast visual overview and sharing.
Which should a beginner start with?
Voyant, because it runs in a browser with no installation and turns a folder of texts into frequencies, trends and word clouds in minutes. Move to AntConc when you need exact concordance lines, keyword statistics and reproducible local settings.
Is it safe to upload sensitive texts to Voyant?
Be cautious: the public voyant-tools.org server processes your text on a remote machine, so for unpublished or restricted material run a local Voyant server or use AntConc, which keeps everything on your own computer.
Can I get the same keyword analysis in both?
AntConc offers stronger, more transparent keyword analysis with a reference corpus and a choice of statistics like log-likelihood. Voyant can surface distinctive terms visually but is less suited to rigorous, citable keyword statistics.
Do either of them handle large corpora well?
AntConc handles large local corpora more predictably because it runs on your machine's resources; the public Voyant server can slow or time out on very large uploads. For multi-million-word corpora, prefer AntConc or scripted tools.
Can I use both tools in one project?
Yes, and it is common: use Voyant for fast visual reconnaissance to spot what is interesting, then AntConc for precise concordances and citable keyword statistics on those findings. They complement rather than compete.